# Relationship history for MSHA mine 2102760

Current hierarchy: **Anthony  Scepaniak; Joseph  Scepaniak → Wm. D. Scepaniak Inc → CR #2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Steve  Hall → CR #2; 1950-01-01 to 2017-02-23; source msha-controller-operator-history
- **operator_operates_mine:** Hardrives Inc → CR #2; 1980-04-01 to 1991-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Hall → Hardrives Inc; 1980-04-01 to 1991-07-09; source msha-controller-operator-history
- **controller_controls_mine:** William J  Scepaniak et al → CR #2; 1981-07-01 to 2021-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Wm. D. Scepaniak Inc → CR #2; 1991-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William J  Scepaniak et al → Wm. D. Scepaniak Inc; 1991-07-10 to 2021-04-30; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → CR #2; 2017-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Hardrives Inc; 2017-02-24 to 1991-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Anthony  Scepaniak et al → CR #2; 2021-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Scepaniak et al → Wm. D. Scepaniak Inc; 2021-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Scepaniak et al → Wm. D. Scepaniak Inc; 2021-05-01 to current/open; source msha-controller-operator-history